Blood pressure monitor apparatus
First Claim
1. A blood pressure monitor apparatus comprising:
- a blood pressure measuring device which includes a cuff and measures an actual blood pressure value of a living subject by changing a pressing pressure of the cuff applied to a body portion of the subject;
estimated blood pressure determining means for successively determining an estimated blood pressure value of the subject, based on each of successive sets of actual pulse-wave propagation information of the subject, according to a relationship between blood pressure and pulse-wave propagation information;
preparing means for preparing a plurality of candidates for said relationship between blood pressure and pulse-wave propagation information;
calculating means for successively calculating a plurality of estimated blood pressure values, based on each of successive sets of actual pulse-wave propagation information of the subject, according to said plurality of candidates prepared by said preparing means, respectively, and thereby providing a plurality of groups of successively calculated estimated blood pressure values which correspond to said plurality of candidates, respectively;
starting means for controlling said blood pressure measuring device to measure an actual blood pressure value of the subject, when at least one of respective changes of said plurality of groups of estimated blood pressure values provided by said calculating means exceeds a first reference value; and
selecting means for selecting, as said relationship between blood pressure and pulse-wave propagation information, one of said plurality of candidates which corresponds to one of said plurality of groups of estimated blood pressure values which includes the estimated blood pressure value that is most approximate to said actual blood pressure value measured by said blood pressure measuring device under control of said starting means.
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Accused Products
Abstract
A blood pressure (BP) monitor apparatus including a BP measuring device which measures a BP value of a living subject by changing a pressing pressure of a cuff, an estimated blood pressure (EBP) determining device which determines an EBP value of the subject, based on each of successive sets of pulse-wave propagation information (PWPI) of the subject, according to a blood pressure-pulse wave propagation information (BP-PWPI) relationship, a preparing device which prepares a plurality of candidates for the BP-PWPI relationship, a calculating device which calculates a plurality of EBP values, based on each of successive sets of PWPI of the subject, according to the plurality of candidates, and thereby providing a plurality of groups of calculated EBP values which correspond to the plurality of candidates, respectively, a starting device which controls the BP measuring device to measure a BP value of the subject, when at least one of respective changes of the plurality of groups of EBP values exceeds a first reference value, and a selecting device which selects, as the BP-PWPI relationship, one of the plurality of candidates which corresponds to one of the plurality of groups of EBP values which includes the EBP value that is the most approximate to the BP value.
79 Citations
17 Claims
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1. A blood pressure monitor apparatus comprising:
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a blood pressure measuring device which includes a cuff and measures an actual blood pressure value of a living subject by changing a pressing pressure of the cuff applied to a body portion of the subject; estimated blood pressure determining means for successively determining an estimated blood pressure value of the subject, based on each of successive sets of actual pulse-wave propagation information of the subject, according to a relationship between blood pressure and pulse-wave propagation information; preparing means for preparing a plurality of candidates for said relationship between blood pressure and pulse-wave propagation information; calculating means for successively calculating a plurality of estimated blood pressure values, based on each of successive sets of actual pulse-wave propagation information of the subject, according to said plurality of candidates prepared by said preparing means, respectively, and thereby providing a plurality of groups of successively calculated estimated blood pressure values which correspond to said plurality of candidates, respectively; starting means for controlling said blood pressure measuring device to measure an actual blood pressure value of the subject, when at least one of respective changes of said plurality of groups of estimated blood pressure values provided by said calculating means exceeds a first reference value; and selecting means for selecting, as said relationship between blood pressure and pulse-wave propagation information, one of said plurality of candidates which corresponds to one of said plurality of groups of estimated blood pressure values which includes the estimated blood pressure value that is most approximate to said actual blood pressure value measured by said blood pressure measuring device under control of said starting means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification